Tekminai



D. BYRNE.

TERMINAL MEMBER AND FIXTURE STUD ATTAGHING MEANS. APPLICATION FILED JUNE 16,1913.

1,323,152. Patented Nov. 25, 1919.

INVENTUE QMZZ @omo STAafirQrnFEN r OFFICE.

DAVID BYBNE, OF TOLEDO, OHIO, ASSIGNOR 0F ONE-THIRD TO 'WILLIAM M. GORE AND ONE-THIRD T0 CHARLES T. LAWTON, BOTH OF TOLEDO, OHIQ.

TERMINAL MEMBER AND FIXTURE-STUD-ATTACHING MEANS.

Specification of Letters Patent.

Patented Nov, 25, 1919a Application filed. June 16, 1919. Serial No. 364,405.

To all whom it may co'ncemn Be it known that I, DAVID BYRNE, a citizen of'the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Terminal Member and FixturdStud-Attaching Means; and '1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe, accompanying drawings and to the charactersof reference marked thereomwhich form a part of this specification.

This invention relates to terminal boxes or plates for electric wiring, and has for its object the provision of a simple and improved manner of attaching fixture studs to terminal boxes or plates.

The invention is fully described in the following specification, and while, in its broader aspect, it is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which,--

Figure 1 is a perspective view of a terminal box embodying the invention, with the fixture stud removed, Fig. 2 is a perspective view of a terminal stud embodying the invention, and Fig. 3 is a sectional view of a terminal box and fixture stud embodying the invention attached to a ceilin or wall as they may appear in use and with parts in full.

Referring to the drawing, 1 designates a terminal or outlet member, in the present instance, of the box form generally used in electric wiring and whic may be made in numerous shapes and sizes. The side walls and top of this box are usually provided with knock-outs 2, and the top is provided with a central opening 3 for receiving the fixture stud a. The fixture stud 4; is provided, in the present instance, atits inner end or the end thereof opposed to that to which the fixture is attached, with a stop flange 5, which shoulders against the outer marginal wall of the opening3 to limit the movement of the stud therethrough and this flange is provided at opposite sides of the stud with radially projecting earsti, which are inclined or bent a greater or less extent toward the outer or fixture attaching end of the stud a, as shown in Fig. '2.

The top of the terminal member 1 is counter-sunk, as shown at 7, around the marginal.

portion of the opening 3 to permit a seating of the flange 5 of the stud in such countersunk portion, and the side walls of the counter-sink 7 are provided at opposite sides of its axis with openings 8 for receiving the ears 6 of the stud. The distance between the outer edge walls of the openings 8, 8 is substantially equal to the distance between the outer ends of the ears 6 so as to permit the ends of the-ears to pass down between said edge walls and into register with the openings 8 when the fixture stud 4 is inserted in the opening 3. When the fixture stud has been thus positioned in the opening 3 a blow of a hammer or other suitable object against the flanged end of the stud will drive the stud to its limit within the opening 3 and cause the ears 6 to spread or straighten out and enter the openings 8 so as to coact with the outer walls of such opening to prevent the withdrawal of the stud from the terminal member, as shown in Fig. 3. lit is evident that a straightening or spreading out of the ears 6 is caused by the coaction of said ears with the bottom portion of the counter-sink 7- as the stud is driven or forced into the opening 3.

It is evident that with my invention a terminal member, which may be of box, plate or other form, and a fixture stud may be easily and quickly assembled and locked in such position, thus facilitating the assem bling of such parts. I

I wish it understood that my invention is not limited to any specific construction, arrangement or form of the parts as it is capable of numerous modifications and changes without departing from the spirit of the claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is,-

1. In combination, a terminal member having a fixture stud receiving opening therein and having openings at opposite sides of the fixture stud receiving opening and facing the same, and a fixture stud for insertion within said stud receiving opening and havin laterally projecting ears for entering sai side openings to coact with the walls thereof to retain the fixture stud and the terminal member in assembled relation.

2., In combination, a terminal member having a fixture stud receiving opening there-' in and having side openings facing the axis of the first opening and disposed at opposite sides thereof, and a fixture stud having 5 inclined ears projecting transversely therefrom and adapted to be laced in register with said side openings when the stud is inserted in the receiving opening therefor and to be spread out into holding engagement 10 with the walls of said side openings.

3. In combination, a terminal member having a counter-sink therein provided with a centrally disposed opening and with side openings at opposite sides of the countersink and facing the center opening axis, and a fixture stud for insertion through said center opening and having oppositely projecting cars at an end thereof for seating in said counter-sink and projecting into said side opening to coact with the Walls thereof to retain the parts assembled.

In testimony whereof I have hereunto signed my name to this specification.

DAVID BYRNE. 

